Ranger Posted May 2, 2009 Report Share Posted May 2, 2009 P0741 and the word "budget" are not used in the same sentence. The TCC solenoid is a $50 part buried $2000 deep in the trans. The good news is, you can ignore it if you want. The only thing it will hurt is your fuel mileage and then only by about 1 MPG. If you have to get an emissions inspection, you won't pass with that code stored. One week before the test, clear the code and do not drive in 4th until after you pass the test. Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 Explain not shifting at all, does it at least shift from first to second?, or is it staying in first? Check fluid Ok,it does shift from1st to 2nd then to 3rd rpms go high like it went back to 2nd and when it reaches 40 it goes in neutral or idle...i stop it and i can drive back again...also i feel a little kick when i shift gears like from 3rd to n and or reverse...fluid is ok... however theres a plug that has fluid or oil on it...maybe when i was toping the fluid i let some got to it.. Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 2, 2009 Report Share Posted May 2, 2009 I think you should seek out a tranny shop, this does not sound good... slipping is never a good thing. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 thanks for your assistance...i am just hoping a fluid change and or plug cleaning(the plug you have a pic of) will fix it...it sounds like a solenoid based on what i read here...sometimes it gets back to normal after a fluid change i heard... Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 2, 2009 Report Share Posted May 2, 2009 thanks for your assistance...i am just hoping a fluid change and or plug cleaning(the plug you have a pic of) will fix it...it sounds like a solenoid based on what i read here...sometimes it gets back to normal after a fluid change i heard... Interesting, you found my thread? You can try opening that plug and cleaning it, but its not likely that it would cause slipping, you would throw codes.. I GOOD tranny shop can drop the pan and have a look, clutch material would indicate a problem, they can also do a pressure test. I do not believe that a P0741 would cause this. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 thanks for your assistance...i am just hoping a fluid change and or plug cleaning(the plug you have a pic of) will fix it...it sounds like a solenoid based on what i read here...sometimes it gets back to normal after a fluid change i heard... Interesting, you found my thread? You can try opening that plug and cleaning it, but its not likely that it would cause slipping, you would throw codes.. I GOOD tranny shop can drop the pan and have a look, clutch material would indicate a problem, they can also do a pressure test. I do not believe that a P0741 would cause this. Yeah man,im researching this like crazy...spent hours today here and in other search engines...you did a very crazy job,lol I also read that it p 0742 tcc system stuck offmakes it cut off when u rech 41mph and thats exactly what is happening... Link to comment Share on other sites More sharing options...
kens96 Posted May 2, 2009 Report Share Posted May 2, 2009 I have a 96 eldo and recently had my second tranny rebuild. The first time I had the TCC codes and the dreaded input speed sensor issue. That was at 115K miles . At 156K miles I had a tranny problem(its in the posts here) with no codes and similar symptoms to your - tranny dropping out of OD and 4th and the "kick" just before you come to a full stop like there is a loose engine or tranny mount. Ended up being the torque converter was dropping out under load and not fully releasing when coming to a stop. Had it rebuilt again. The tranny place made good on the repair 41K miles later I, Just paid for labor. Unfortunately there is no cheap fix for the tranny on these cars. Find a reputable shop(prefereably not a franchise) and have them rebuild your unit. If you like the way the car rides now. You will love the way it rides with a good rebuild in it ! Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 2, 2009 Report Share Posted May 2, 2009 Thanks Ken, your recent problems and rebuilt came to mind during my last post...thanks Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 2, 2009 Report Share Posted May 2, 2009 Get a good used transmission. If you have the base Eldorado (8th VIN digit is "Y") be sure and get a transmission from a Cadillac or Olds Aurora that has the 8th VIN digit "Y." If you have an ETC, your 8th VIN digit is "9," and be sure and get a transmission from a Cadillac that has the 8th VIN digit "9." These transmissions have different final drive ratios and the wrong one will get you code P0730 which will prevent you from passing emissions inspection. You could change the differential, but the whole point is that you are on a budget here, and removing and replacing the transmission is stretching that pretty dramatically, and anything else would break it for sure. If that seems acceptable to you, others here can recommend sources of used transmissions. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 i like dat...so an used tranny will be cheaper than fix mine?even with labor?sorry if it sounds stupid but its my first used car in Usa all my other ones were brand new (b4 divorce lol) So what is a good source for me to get a good used one? Link to comment Share on other sites More sharing options...
Ranger Posted May 2, 2009 Report Share Posted May 2, 2009 I think P0742 is TCC stuck ON. That said, the 4T80E is a pretty strong and reliable trans. That is one thing I would not hesitate to get from a salvage yard. Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 Ok i dropped the pan and replace fluid...(metal found on filters and at the bottom of the pan)...Im inclinate to buy an used one ,any sugestions or what else should i do? Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 2, 2009 Report Share Posted May 2, 2009 Ok i dropped the pan and replace fluid...(metal found on filters and at the bottom of the pan)...Im inclinate to buy an used one ,any sugestions or what else should i do? Just metal filings?, no clutch material flakes? how much metal? Did you take any photos of it? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 Ok i dropped the pan and replace fluid...(metal found on filters and at the bottom of the pan)...Im inclinate to buy an used one ,any sugestions or what else should i do? Just metal filings?, no clutch material flakes? how much metal? Did you take any photos of it? In the pan only metal shavings (not a little not too much,but present significantly) on the filters there was like a "metal shreded" 2 small dots the size of the letter "o" in your keyboard in each filter)Is it a clue? Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 if i have to replace my tranny how much a shop will charge me to do it (average only labor)?Any idea? Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 2, 2009 Report Share Posted May 2, 2009 There's always some metal in the pan of an automatic transmission. In fact a lot of transmission shops show it to the customer to get them to go for a full rebuild when they have it serviced. I'm much more concerned about 4th gear going away. It isn't likely just the solenoids because that would throw a code, and your only code is the TCC code, so the clutches are sticking or gone. I'm sorry but I can't comment on cost for R&R a Northstar transmission. Does anyone have a flat rate manual? -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 2, 2009 Author Report Share Posted May 2, 2009 Ok,i have something else to check,after some research i learned i should also check the tcc brake switch (found the info on www.alldatadiy.com)when i search my code p0741...Anyone knows how it looks like their schematics not clear enough... Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 3, 2009 Report Share Posted May 3, 2009 This gets confusing to me at this point. The reason it gets confusing is because, I am confused as to how many gears the tranny has. Is it 4 forward gears plus OD or is it 3 forward gears plus OD. OD meaning that the torque converter locks up in a 1:1 ratio. Can someone clear this up for me.. I think the last time this was discussed, I was told that the tranny can go into OD, in third and fourth gear... My question here is that PLUS what is Bruno losing 4th gear or OD given the TCC code. Maybe this is symantics, but I need a clarification here Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 3, 2009 Report Share Posted May 3, 2009 The 4T80E has four gears. the ratios are 2.96, 1.63, 1.00 and 0.68, and 4th is considered an overdrive by some people, but me, I think it's just a four-gear transmission. The shift speeds for different throttle settinggs are given in a table on page 7-5 of the 1997 FSM. The TCC clutch will engage at 41 mph or faster, and I have engaged the TCC in 3rd and even, on a test, 2nd gear. So, the TCC is speed dependent, and will likely engage in any gear (I didn't try 1st). The instructions for R&R of the transmission are in the 1997 FSM on pages 7-199 through 7-205. The engine does not come out, but they use an engine support fixture that supports the engine from the top. There is a warning to "mark the flywheel to converter position so that they can be assembled in the same position" which hints that the converter and flywheel are balanced with the engine. I don't know what to say about that; ask a transmission person. Putting the transmission back needs another special too, a "J 35551 Ball Stud Nut Wrench." The only difference between the VIN 9 transmission and the VIN Y transmission is the final drive ratio. The VIN 9 has a 3.71 final drive ratio, while a VIN Y transmission has a 3.11 final drive ratio. The final drive, or differential, can be changed quite easily when the transmission is out. The instructions for R&R the final drive assembly are in the 1997 FSM on page 7-195. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 3, 2009 Report Share Posted May 3, 2009 Thanks Jim... so with a P0741, my guess is that this tranny is not going into OD / lock up? So this is a 4 speed transmission with a LOCK up TC? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 3, 2009 Report Share Posted May 3, 2009 Since he is slipping, I have a feeling he has two problems here, his 4th gear has a problem and his TCC has a problem, the slipping that he has described has nothing to do with the P0741, that brake pedal switch would ONLY drop it out of TCC lock up, it would NOT cause it to slip or cause rising RPM (a sign of slipping). That P0741 is not related to slipping Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 3, 2009 Report Share Posted May 3, 2009 Since he is slipping, I have a feeling he has two problems here, his 4th gear has a problem and his TCC has a problem, the slipping that he has described has nothing to do with the P0741, that brake pedal switch would ONLY drop it out of TCC lock up, it would NOT cause it to slip or cause rising RPM (a sign of slipping). That P0741 is not related to slipping That, and the limited budget, are why I mentioned a used transmission. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 3, 2009 Report Share Posted May 3, 2009 Since he is slipping, I have a feeling he has two problems here, his 4th gear has a problem and his TCC has a problem, the slipping that he has described has nothing to do with the P0741, that brake pedal switch would ONLY drop it out of TCC lock up, it would NOT cause it to slip or cause rising RPM (a sign of slipping). That P0741 is not related to slipping That, and the limited budget, are why I mentioned a used transmission. I have always been a little slow to conclude lol Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
BrunoBrazil Posted May 4, 2009 Author Report Share Posted May 4, 2009 Since he is slipping, I have a feeling he has two problems here, his 4th gear has a problem and his TCC has a problem, the slipping that he has described has nothing to do with the P0741, that brake pedal switch would ONLY drop it out of TCC lock up, it would NOT cause it to slip or cause rising RPM (a sign of slipping). That P0741 is not related to slipping That, and the limited budget, are why I mentioned a used transmission. I have always been a little slow to conclude lol I really want to thank you guys for all the help...i started looking for an used tranny online...my eldo still does the same thing...It goes well(shifting) untill it hits 40/41 mph and then kicks me in idle,when it slows down 20/25 mph then i can get it going again...as long i dont hit 41mph it rides smooth... Thank you all again...and just drop me a line if anyone has any ideas or guesses... Link to comment Share on other sites More sharing options...
Cadillac Jim Posted May 4, 2009 Report Share Posted May 4, 2009 According to the factory shop manual (FSM) page 7-5, the transmission shifts into 4th gear at 41 mph at light throttle, and your car goes into "neutral" at 41 mph. So, apparently you have no 4th gear. Since you have no codes, then the solenoids are probably OK, thus my opinion that you have no 4th gear. You might try driving with the shifter in "3" instead of "D" until you can get the car fixed. From another table in the 1997 FSM on page 7-5, the solenoids and gears are listed: Gear____1-2_2-3 First-------ON OFF Second-OFF OFF Third-----OFF ON Fourth----ON ON Reverse--ON OFF Since your transmission is shifting normally in first, second, and third gears (you are getting all three gears normally?), then both your solenoids are functioning. The FSM, page 7-159, lists possible causes for no 4th gear: 1-2 solenoid inoperative, stuck or clogged, or has its wires pinched 4th band is burned, slipping, or missing (!!!) 4th servo pin is broken or seized 4th servo piston is damaged 4th servo seals are rolled, cut or damaged 4th servo cover is cracked 3-4 shift valve bore plug is miss-assembled All but the first two are more likely the result of errors or damage in rebuilding the transmission, and in the second item, I can't imagine a missing band except by an assembly error. I suppose that it is possible to damage the transmission by driving over some really big rocks or in an accident in which the transmission is hit hard, but you would notice a hole larger than a bowling ball int the transmission pan or some such before you started critiquing the solenoids and servos. The first would throw a code, which you don't have, and you would not have first or reverse gears, either. Thus, your 4th band is likely bad. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
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